Telescopic charging wire box

Abstract

The utility model discloses a telescopic charging wire box, which comprises a bottom cover, a data line, a rotary wire coil, an electric brush disc, a PCB (Printed Circuit Board) and an upper cover, an elastic spring is arranged in the center of the rotary wire coil which is arranged in the bottom cover; the electric brush disc is arranged at the lower part of the rotating wire disc and is formed by fixing a plurality of PIN high-conductivity copper terminals through a fixing sheet, and a wiring copper sheet is arranged on the fixing sheet; the data line is wound on the rotary wire coil, one end of the data line passes through the wire hole and is welded with the wiring copper sheet on the electric brush disc, and the other end of the data line is an interface end and is exposed outside the bottom cover and the upper cover; annular copper exposing areas matched with the PIN high-conductivity copper terminals in an equivalent mode are formed on the upper surface of the PCB, the upper cover and the bottom cover are buckled together, and the PIN high-conductivity copper terminals are in contact conduction with the copper exposing areas. According to the utility model, the structure that the PCB is connected with a plurality of small electric brush discs is changed into the structure that the large electric brush disc is directly connected with the PCB, so that the direct contact area of the electric brush disc and the PCB is increased, overlarge voltage drop caused by conduction of large current is avoided, and the current conduction is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a charging wire box especially a telescopic charging wire box. BACKGROUND

[0002] The telescopic charging wire box has telescopic data lines and can be connected with mobile devices for charging. SUMMARY

[0003] The telescopic charging wire box can avoid large current conduction causing excessive voltage drop and ensure current conduction.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme: a telescopic charging wire box, comprising a bottom cover, data lines, a rotating wire disc, brush discs, a PCB board and an upper cover; the rotating wire disc is provided with an elastic spring at the center, the elastic spring is buckled on the rotating wire disc through a spring buckle, and the rotating wire disc is arranged in the bottom cover; the brush disc is arranged at the lower part of the rotating wire disc and is fixed by a plurality of PIN high-copper terminals through a fixing sheet, and the fixing sheet is provided with a copper sheet; the data lines are wound on the rotating wire disc, one end of the data lines is welded with the copper sheet on the brush disc through a wire hole, and the other end is an interface end and is exposed outside the bottom cover and the upper cover; the PCB board is adhered in the upper cover, the upper surface of the PCB board is formed with an annular copper exposure area which is adapted to the PIN high-copper terminals, and the lower surface is formed with a wire outlet end for connecting an external power supply; the upper cover and the bottom cover are buckled together, the PIN high-copper terminals are in contact with the copper exposure area; after the data lines are stretched outwards, the rotating wire disc is automatically rolled back to contract the data lines under the action of the elastic spring.

[0005] Further, the upper cover is provided with a rotating limiting piece, the rotating limiting piece is connected with the upper cover through a rotating shaft at the center, and a convex point is formed on the end of the rotating limiting piece; the back of the rotating wire disc is formed with a sliding groove, the sliding groove is provided with a clamping groove, the convex point rotates along with the stretching and contraction of the data lines, and the convex point is clamped into the clamping groove to limit the data lines.

[0006] Further, the surface of the rotating limiting piece and the sliding groove is smeared with a lubricant.

[0007] Further, the brush disc and the back of the rotating wire disc are fastened by glue.

[0008] The upper cover and the bottom cover are provided with screw hole positions in the center, and are fixed by screws.

[0009] The rotation limiting piece is a metal piece.

[0010] The beneficial effects of the above technical scheme are that the structure of connecting multiple small brush discs to the PCB board is changed to directly connect a large brush disc to the PCB board, the contact area of the brush disc and the PCB board is increased, the large current conduction is avoided to cause the excessive voltage drop, and the current conduction is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is an assembly structure schematic view of the utility model;

[0012] Figure 2 It is a brush disc and PCB board connection schematic view of the utility model;

[0013] Figure 3 It is a data line and brush disc connection schematic view of the utility model;

[0014] Figure 4 It is a data line and brush disc connection schematic view of the utility model;

[0015] Figure 5 It is a rotation limiting piece working principle schematic view of the utility model;

[0016] In the figure: 1, bottom cover, 2, data line, 3, spring buckle, 4, elastic spring, 5, rotating wire disc, 501, wire hole, 502, inner ring groove, 503, import channel, 504, clamping groove, 505, export channel, 506, outer ring groove, 6, brush disc, 601, wiring copper sheet, 602, PIN high-conductivity copper terminal, 603, fixed sheet, 7, PCB board, 701, copper exposed area, 8, rotation limiting piece, 9, upper cover, 10, screw. DETAILED DESCRIPTION

[0017] The utility model will be further described in detail in combination with the drawings.

[0018] In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0019] One embodiment of the utility model: as Figure 1 The utility model discloses a telescopic charging wire box, including bottom cover 1, data line 2, rotary wire disc 5, brush disc 6, PCB board 7 and upper cover 9, rotary wire disc 5 center is provided with elastic clockwork 4, and elastic clockwork 4 is buckled on rotary wire disc 5 through clockwork buckle 3, and rotary wire disc 5 is arranged in bottom cover 1. Figure 2 As shown in the figure, the brush disc 6 is arranged at the lower part of the rotary wire disc 5, and is fixed by a plurality of PIN high-copper terminals 602 through fixing sheets 603, and the fixing sheets 603 are provided with wiring copper sheets 601. Figure 3 And Figure 4 As shown in the figure, the data line 2 is wound on the rotary wire disc 5, one end of the data line 2 is welded with the wiring copper sheet 601 on the brush disc 6 through a wire hole 501, and the other end is an interface end and is exposed outside the bottom cover 1 and the upper cover 9; the PCB board 7 is adhered in the upper cover 9, and the upper surface of the PCB board 7 is formed with an annular copper exposure area 701 adapted to the PIN high-copper terminal 602, and the lower surface is formed with a wire outlet end for connecting an external power supply. Figure 2 As shown in the figure, the upper cover 9 is buckled with the bottom cover 1, and the PIN high-copper terminal 602 is in contact with the copper exposure area 701. In use, the data line 2 interface end is stretched outward, the data line 2 drives the rotary wire disc 5 and the elastic clockwork 4 to rotate, the elastic clockwork 4 stores power, after the data line 2 is released, the elastic clockwork 4 loses the external force, starts to rotate, drives the rotary wire disc 5 to automatically roll up and shrink the data line 2, and the brush disc 6 is welded with the data line 2 in conduction, the surface copper PIN is in contact with the top PCB board 7, realizes the continuous conduction of the wire material stretching and rotating and the PCB. The utility model changes the structure that the PCB board 7 connects a plurality of small brush discs into the structure that one large brush disc is directly connected with the PCB board 7, increases the contact area of the brush disc directly with the PCB board 7, avoids that the pressure drop is too large when large current conduction, guarantees the current conduction. At the same time, the increase of the contact area also reduces the difficulty of welding operation, reduces false welding, and solves the problem of welding skew.

[0020] In some other specific embodiments of the utility model, the rest is the same as the above-mentioned embodiments, and the difference is that Figure 5As shown, the upper cover 9 is provided with a rotation limiting part 8, the rotation limiting part 8 is connected with the upper cover 9 through a rotating shaft in the center, and a convex point is formed at the end of the rotation limiting part 8; the back of the rotating wire disc 5 is formed with a sliding groove, the sliding groove comprises an inner ring groove 502, an import channel 503, a clamping groove 504, an export channel 505 and an outer ring groove 506; the inner ring groove 502 is communicated with the outer ring groove 506 through the import channel 503, the outer ring groove 506 is provided with the clamping groove 504, and the clamping groove 504 is communicated with the inner ring groove through the export channel 505. The limiting process is as follows: when the data line 2 is stretched outward, the convex point on the rotation limiting part 8 slides clockwise in the sliding groove, the convex point slides into the outer ring groove 506 from the inner ring groove 502 through the import channel 503, and continuously slides in the outer ring groove 506. When the data line 2 is released, the elastic spring 4 automatically winds the data line 2, the convex point slides counterclockwise backward, and then the data line 2 is clamped to realize limiting. When the data line 2 needs to be recovered, the data line 2 is stretched forward for a period of time, the convex point can rotate clockwise forward, and then enters the inner ring groove 502 again through the export channel 505. At this time, when the data line 2 is released, the data line 2 can be automatically retracted to the position. It should be pointed out that the structure of the limiting part is known in the prior art, and in addition to the embodiment, various limiting structures in the prior art can also be used to replace the present scheme.

[0021] In some other specific embodiments of the present application, the rest is the same as the above-mentioned embodiments, and the difference is that Figure 1 and Figure 5 As shown, the rotation limiting part 8 is smeared with a lubricant on the surface of the sliding groove. The frictional resistance is reduced, the wear is slowed down, and the rotation limiting part 8 is prevented from being clamped due to long-term use.

[0022] In some other specific embodiments of the present application, the rest is the same as the above-mentioned embodiments, and the difference is that Figure 4 As shown, the brush disc 6 is fastened with the back of the rotating wire disc 5 through glue. The position of the brush disc 6 is fixed, and the brush disc 6 rotates synchronously with the rotating wire disc 5.

[0023] In some other specific embodiments of the present application, the rest is the same as the above-mentioned embodiments, and the difference is that Figure 1 As shown, the upper cover 9 is provided with a screw hole in the center and is fixed through a screw 10. The screw fixed product makes the product structure more reliable.

[0024] In some other specific embodiments of the present application, the rest is the same as the above-mentioned embodiments, and the difference is that Figure 1 As shown, the rotation limiting part 8 is a metal part. In the prior art, the rotation limiting part 8 is usually a plastic part, and the plastic part is prone to wear after a large number of rotations, resulting in poor stretching feeling.

[0025] Of course, the above embodiments are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, and it cannot limit the protection scope of the present application. Any equivalent transformation or modification according to the spirit and essence of the main technical scheme of the present application should be covered within the protection scope of the present application.

Claims

1. A retractable charging cord housing, characterized by, It comprises a bottom cover, a data line, a rotating line disc, a brush disc, a PCB board and an upper cover. The rotating line disc is provided with an elastic spring at the center, and the elastic spring is buckled on the rotating line disc through a spring buckle. The brush disc is arranged at the lower part of the rotating line disc and is fixed by a plurality of PIN high-copper terminals through a fixing sheet. The data line is wound on the rotating line disc, one end of the data line is welded with the wiring copper sheet on the brush disc through a wire hole, and the other end is an interface end exposed outside the bottom cover and the upper cover. The PCB board is adhered in the upper cover, and the upper surface of the PCB board is formed with an annular exposed copper area adapted to the PIN high-copper terminal, and the lower surface is formed with a wire outlet end for connecting an external power supply. The upper cover and the bottom cover are buckled together, the PIN high-copper terminal is in contact with the exposed copper area, and the data line is stretched outwards, and the rotating line disc is automatically rolled and shrunk under the action of the elastic spring.

2. A retractable charging cord housing according to claim 1, wherein, The upper cover is provided with a rotating limiting piece, the rotating limiting piece is provided with a rotating shaft at the center and is connected with the upper cover, and the end of the rotating limiting piece is formed with a convex point upward.

3. A retractable charging cord housing according to claim 2, wherein, The rotating line disc is formed with a sliding groove at the back, the sliding groove is provided with a clamping groove, the convex point rotates with the expansion and contraction of the data line, and the convex point is clamped into the clamping groove to limit the data line.

4. A retractable charging cord housing according to claim 1 or 2, characterized in that The surface of the rotating limiting piece and the sliding groove is smeared with a lubricant.

5. A retractable charging cord housing according to claim 1 or 2, wherein The brush disc and the back of the rotating line disc are adhered and fastened by glue.

6. A retracting charging cord housing according to claim 2, wherein, The upper cover and the bottom cover are provided with screw holes at the center and are fixed by screws. The rotating limiting piece is a metal piece.

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